Home / 128,261.85-192,392.77-34,767.60

Finding the Fourth Proportional to 128,261.85, 192,392.77 and 34,767.60

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Solution

The fourth proportional to 128,261.85, 192,392.77 and 34,767.60 is: 52,151.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,261.85 : 192,392.77 = 34,767.60 : x
  2. Step 2: Convert to fraction form
    128,261.85/192,392.77 = 34,767.60/x
  3. Step 3: Cross multiply
    128,261.85x = 192,392.77 × 34,767.60
  4. Step 4: Simplify right side
    128,261.85x = 6,689,034,870.25
  5. Step 5: Solve for x
    x = 6,689,034,870.25/128,261.85
  6. Step 6: Final answer
    x = 52,151.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.